/*
 * Copyright (C) 2016+     AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-GPL2
 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
 */

/* ScriptData
SDName: Boss_Gahz'ranka
SD%Complete: 85
SDComment: Massive Geyser with knockback not working. Spell buggy.
SDCategory: Zul'Gurub
EndScriptData */

#include "ScriptMgr.h"
#include "ScriptedCreature.h"
#include "zulgurub.h"

enum Spells
{
    SPELL_FROSTBREATH               = 16099,
    SPELL_MASSIVEGEYSER             = 22421, // Not working. (summon)
    SPELL_SLAM                      = 24326
};

enum Events
{
    EVENT_FROSTBREATH               = 1,
    EVENT_MASSIVEGEYSER             = 2,
    EVENT_SLAM                      = 3
};

class boss_gahzranka : public CreatureScript // gahzranka
{
public:
    boss_gahzranka() : CreatureScript("boss_gahzranka") { }

    struct boss_gahzrankaAI : public BossAI
    {
        boss_gahzrankaAI(Creature* creature) : BossAI(creature, DATA_GAHZRANKA) { }

        void Reset()
        {
            _Reset();
        }

        void JustDied(Unit* /*killer*/)
        {
            _JustDied();
        }

        void EnterCombat(Unit* /*who*/)
        {
            _EnterCombat();
            events.ScheduleEvent(EVENT_FROSTBREATH, 8000);
            events.ScheduleEvent(EVENT_MASSIVEGEYSER, 25000);
            events.ScheduleEvent(EVENT_SLAM, 17000);
        }

        void UpdateAI(uint32 diff)
        {
            if (!UpdateVictim())
                return;

            events.Update(diff);

            if (me->HasUnitState(UNIT_STATE_CASTING))
                return;

            while (uint32 eventId = events.ExecuteEvent())
            {
                switch (eventId)
                {
                    case EVENT_FROSTBREATH:
                        DoCastVictim(SPELL_FROSTBREATH, true);
                        events.ScheduleEvent(EVENT_FROSTBREATH, urand(7000, 11000));
                        break;
                    case EVENT_MASSIVEGEYSER:
                        DoCastVictim(SPELL_MASSIVEGEYSER, true);
                        events.ScheduleEvent(EVENT_MASSIVEGEYSER, urand(22000, 32000));
                        break;
                    case EVENT_SLAM:
                        DoCastVictim(SPELL_SLAM, true);
                        events.ScheduleEvent(EVENT_SLAM, urand(12000, 20000));
                        break;
                    default:
                        break;
                }
            }

            DoMeleeAttackIfReady();
        }
    };

    CreatureAI* GetAI(Creature* creature) const
    {
        return new boss_gahzrankaAI(creature);
    }
};

void AddSC_boss_gahzranka()
{
    new boss_gahzranka();
}
